Jegantha, the Wellspring + Horde of Notions + Goblin Bombardment + Fires of Yavimaya

Jegantha, the Wellspring

Horde of Notions

Goblin Bombardment

Fires of Yavimaya

How it works

1. Activate Jegantha by tapping it, adding that cannot be spent to pay generic mana costs.
2. Activate Goblin Bombardment by sacrificing Jegantha.
3. Activate Horde of Notions by paying , causing you to cast Jegantha from your graveyard without paying its mana cost.
4. Repeat.

This ingenious loop relies on Jegantha, the Wellspring to self-fund its own resurrection, using the colored mana produced by its tap ability to bypass the exact color requirements needed by Horde of Notions to cast Elementals straight from the graveyard. While Fires of Yavimaya grants the resurrected Jegantha immediate haste so it can tap again without delay, Goblin Bombardment provides the necessary sacrifice outlet to send Jegantha back to the graveyard and turn those endless cycles into infinite damage and death triggers.